我正在使用简单的 Web 服务来访问服务器上数据库中的数据。我正在使用 android api10 但运行代码时出现错误java.lang.OutOfMemoryError。
我的代码是：
package com.android.webservicesdemo;
import java.util.ArrayList;
import java.util.HashMap;
import org.ksoap2.SoapEnvelope;
import org.ksoap2.serialization.SoapObject;
import org.ksoap2.serialization.SoapSerializationEnvelope;
import org.ksoap2.transport.HttpTransportSE;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
public class androidactivity extends Activity {
/** Called when the activity is first created. */
private static String SOAP_ACTION1 = "http://tempuri.org/getAllDealsbyCategorySer";
private static String NAMESPACE = "http://tempuri.org/";
private static String METHOD_NAME1 = "getAllDealsbyCategorySer";
private static String URL = "http://dosha.dotnetgeekz.com/ServerServices.asmx?WSDL";
static final String KEY_DEAL = "deals"; // parent node
static final String KEY_ID = "id";
static final String KEY_HEADLINE = "DealHeadline";
static final String KEY_CATEGORY = "DealCategory";
static final String KEY_PRICE = "BuyPrice";
ArrayList<HashMap<String, String>> menuItems = new ArrayList<HashMap<String, String>>();
Button btnFar, btnCel, btnClear;
EditText txtFar, txtCel;
TextView textView2;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.mains);
btnFar = (Button) findViewById(R.id.btnFar);
txtFar = (EditText) findViewById(R.id.txtFar);
textView2 = (TextView) findViewById(R.id.textView2);
btnFar.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// Initialize soap request + add parameters
SoapObject request = new SoapObject(NAMESPACE, METHOD_NAME1);
// Use this to add parameters
request.addProperty("category", txtFar.getText().toString());
// Declare the version of the SOAP request
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
envelope.setOutputSoapObject(request);
envelope.dotNet = true;
try {
HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);
// this is the actual part that will call the webservice
androidHttpTransport.call(SOAP_ACTION1, envelope);
// Get the SoapResult from the envelope body.
SoapObject result = (SoapObject) envelope.bodyIn;
if (result != null)
{
// Get the first property and change the label text
textView2.setText(result.getProperty(0).toString());
}
else
{
Toast.makeText(getApplicationContext(), "No Response",Toast.LENGTH_LONG).show();
}
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
}
错误是：
08-31 11:36:06.606: E/dalvikvm-heap(334): Out of memory on a 2813318-byte allocation.
08-31 11:36:06.660: E/AndroidRuntime(334): FATAL EXCEPTION: main
08-31 11:36:06.660: E/AndroidRuntime(334): java.lang.OutOfMemoryError
08-31 11:36:06.660: E/AndroidRuntime(334): at java.lang.AbstractStringBuilder.enlargeBuffer(AbstractStringBuilder.java:95)
08-31 11:36:06.660: E/AndroidRuntime(334): at java.lang.AbstractStringBuilder.append0(AbstractStringBuilder.java:153)
08-31 11:36:06.660: E/AndroidRuntime(334): at java.lang.StringBuffer.append(StringBuffer.java:219)
08-31 11:36:06.660: E/AndroidRuntime(334): at org.ksoap2.serialization.SoapObject.toString(SoapObject.java:646)
08-31 11:36:06.660: E/AndroidRuntime(334): at com.android.webservicesdemo.androidactivity$1.onClick(androidactivity.java:84)
08-31 11:36:06.660: E/AndroidRuntime(334): at android.view.View.performClick(View.java:2485)
08-31 11:36:06.660: E/AndroidRuntime(334): at android.view.View$PerformClick.run(View.java:9080)
08-31 11:36:06.660: E/AndroidRuntime(334): at android.os.Handler.handleCallback(Handler.java:587)
08-31 11:36:06.660: E/AndroidRuntime(334): at android.os.Handler.dispatchMessage(Handler.java:92)
08-31 11:36:06.660: E/AndroidRuntime(334): at android.os.Looper.loop(Looper.java:123)
08-31 11:36:06.660: E/AndroidRuntime(334): at android.app.ActivityThread.main(ActivityThread.java:3683)
08-31 11:36:06.660: E/AndroidRuntime(334): at java.lang.reflect.Method.invokeNative(Native Method)
08-31 11:36:06.660: E/AndroidRuntime(334): at java.lang.reflect.Method.invoke(Method.java:507)
08-31 11:36:06.660: E/AndroidRuntime(334): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
08-31 11:36:06.660: E/AndroidRuntime(334): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
08-31 11:36:06.660: E/AndroidRuntime(334): at dalvik.system.NativeStart.main(Native Method)